RISS 학술연구정보서비스

검색
다국어 입력

http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.

변환된 중국어를 복사하여 사용하시면 됩니다.

예시)
  • 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
  • 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
닫기
    인기검색어 순위 펼치기

    RISS 인기검색어

      검색결과 좁혀 보기

      선택해제
      • 좁혀본 항목 보기순서

        • 원문유무
        • 음성지원유무
        • 원문제공처
          펼치기
        • 등재정보
          펼치기
        • 학술지명
          펼치기
        • 주제분류
          펼치기
        • 발행연도
          펼치기
        • 작성언어
        • 저자
          펼치기

      오늘 본 자료

      • 오늘 본 자료가 없습니다.
      더보기
      • 무료
      • 기관 내 무료
      • 유료
      • 體型別 Harvard Step Test後 血液有形成分의 變化

        閔昌基,金文根 忠南大學校體育科學硏究所 1983 體育科學硏究誌 Vol.1 No.1

        The purpose of this study was to see the change of the formed elements of blood according to the Somatotypes after the Harvard step test. Six male students of D middle school in Dae ton were served as subjects. They were classified into Endomorphy, Mesomorphy, and Ectomorphy by Sheldon’s anthropometric method. Being based on before and after Harvard step test for 5 minutes, the F ratio of change of the formed elements of blood according to the Somatotype groups obtained the Conclusions as following; 1. The formed elements of blood according to Somatotypes in normal state had no remarkable difference. 2. After Harvard step test, each of the Somatotype group marked increase of the formed elements of blood. 3. After Harvard step test, Mesomorphy was lower than Endomorphy and Ectomorphy in concentration rate of the formed elements of blood. 4. In Hemoglobin, only Endomorphy group had increcesed significantly.

      • Tantalum Pentoxide 박막의 전기적 특성에 관한 연구

        장충근,송재용,이기선,강준길,김수용 충남대학교 1990 忠南科學硏究誌 Vol.17 No.2

        Thin tantalum pentoxide(Ta_2O_5) films were deposited by oxygenassisted pyrolysis of tantalum methoxide using LPCVD method and their UV-absorption characteristics, X-ray diffraction, surface structure and I - V characteristics were investigated. Ta_2O_5 films as grown were originally amorphous and became polycrystalline hexagonal δ-Ta_2O_5 after annealing at 800℃ in the nitrogen gas atmosphere for 4 hours. The structures of the si_3N_4 films deposited by LPCVD were basically amorphous but mixed micro crystallites were observed in the films. For the Ta_2O_5 films of about 1000Å thick, the leakage current density through the films was 10 exp (-7) A/㎠ at 5 MV/㎝. The leakage current density was high and breakdown voltage was low with respect to Si_3N_4, Ta_2O_5 films could make them attractive in multiplayer dielectric thin films for memory devices.

      • 치환 Phenacyl Bromide와 Benzimidazole간의 반응에 관한 반응속도론적 연구

        盧載根,金昌錫,洪淳瑛,金沂宣 漢陽大學校 自然科學硏究所 1997 自然科學論文集 Vol.16 No.-

        몇 가지 meta 또는 para 치환 phenacyl bromide 와 benzimidazole간의 친핵성 치환 반응의 속도를 전기 전도도법을 이용하여 측정하였으며 이 반응 속도로부터 활성화 파라미터를 계산하였다. 이들 반응은 phenacyl bromide의 전자 끄는 기에 의해 촉진되었고 치환기의 전자적 성질과 반응 속도 사이에는 Hammett rule이 잘 적용되었다. 활성화 엔탈피와 엔트로피의 관계는 등속 관계를 따랐으며 이때 등속 온도는 278 K로 나타났다. 반응 속도는 용매의 극성이 커짐에 따라 빨라졌으며 용매의 유전 상수와 반응 속도 상수 사이에는 Kirkwood rule이 잘 적용되었다. 반응 속도론적 연구 결과로부터 이들반응은 전형적인 S?2 과정으로 진행하며 활성화 착물에서 phenacyl bromide의 C-Br 결합 해리 보다 benzimidazole의 질소와 phenacyl bromide의 methylene 탄소 사이의 C-N 결합 형성 과정이 반응 속도 결정 단계임을 알 수 있었다. Reaction rates of several m- or p-substituted phenacyl bromides with benzimidazole were measured by an electric conductivity method and activation parameters relevant to these reactions were calculated. Reactions were enhanced by electron-withdrawing substituents, and the relation between reaction rate and electronic nature of the substituent obeyed the Hammett rule. From plots of activation enthalpy against activation entropy, an isokinetic temperature was found to be 278 K. Reaction rates were increased in a more polar solvent and obeyed the Kirkwood rule well. From the observed kinetics, it was concluded that these reactions proceed through a typical ??? path, and the formation of C-N bond between methylene carbon of phenacyl bromide and benzimidazole nitrogen, rather than the cleavage of C-Br bond in phenacyl bromide, is a rate determining step in the activated complex.

      • 벼 생산경영 종합관리 S/W개발

        김웅,김창수,김동원,국중덕,송영주,오남기,최영근 한국농업정보과학회 2001 농업정보과학 Vol.3 No.1

        This programme consisted of 8 menus, which are basic information, job worksheet, technique information, management analysis, file management, window management, help and conclusion. The major functions of this programme by menus classified as follows : 1. The basic information menu, which consisted of a lots of basic farm management information, can be easily accessible to get general farm status of S/W users and inputted data used as basic data for farm management analysis. 2. In worksheet menu, users can easily access to record and search of farm work planning, contents of work, agricultural materials and selling status. 3. In management achievement menu, lots of indexes which represent one years' management achievements are produced and can be compare this years' achievements with last years' ones. This programme Delphi5 and Object pascal programme were used for tools and languages. Also Paradox4 and BDE were used for DB and DB engine respectively.

      • KCI등재
      • 서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1997)

        김재홍,문득곤,김정수,김용준,임동진,박상훈,김희성,이민수,송기훈,김갑형,김형석,성소영,이인섭,김석우,황지환,조창근,김경문,부태성 대한화학요법학회 2000 대한화학요법학회지 Vol.18 No.3

        Background : In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. Objective & Methods : For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results : In 1997. 99 strains of N. gonorrhoeae were isolated, among which 45(45.5%) were PPNG. Conclusion : The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 45.5% in 1997.

      • 서울의 Penicillinase Producing Neisseria Gonorrhoeae 발생빈도(1996)

        김재홍,황동규,전재홍,김윤석,김중환,김용준,이창균,임동진,김현수,조창근,김경문,박상훈,전우형,김희성,이호정,차명수,김갑형,김형석,김석우,황지환,박병순,권오상,이민수,송기훈,성소영,이인섭,부태성 대한화학요법학회 1999 대한화학요법학회지 Vol.17 No.2

        Background : In recent years, gonorrhea has been panedemic and remains one of the most commom STDs in the world, especially in developing countries. Objective & Methods: For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the VD Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results: In 1996, 139 strains of N. gonorrhoeae were isolated, among which 53(39.0%) were PPNG. Conclusion: Our results suggests that after a peak of 74.3% in 1993, the prevalence of PPNG in Seoul is gradually declining.

      • SCIEKCI등재

        알로에 발효주의 barbaloin 함량변화

        박종상,성창근,장기운,Park, Jong-Sang,Sung, Chang-Geun,Chang, Ki-Woon 한국응용생명화학회 1996 Applied Biological Chemistry (Appl Biol Chem) Vol.44 No.1

        알로에 술의 품질향상 및 산업화를 위한 연구자료로서 알로에 술의 제조법을 과학화하기 위하여, 알로에 첨가량에 따른 알로에 술의 특성과 지표성분 함량변화를 살펴본 결과는 다음과 같다. 발효과정 중의 알콜 생산은 0.5%의 알로에 분말 첨가구에서 당을 15%, 20%, 25%로 증량시 약 6.3%, 9.6%, 그리고 11.3%의 알콜이 각각 생성되었다. 술덧중에 알로에의 첨가량이 늘어나면서 알콜의 생산이 완만하게 저하되었다. 알로에의 지표성분으로서 알려져 있는 barbaloin은 0.5% 알로에 첨가구에서 barbaloin의 양은 발효 7일 후 4.2 mg/ml, 10일후에는 4.6 mg/ml이었으나, 30일 후에는 다시 감소되었다. 알로에의 첨가량에 따른 기호도로서 알로에의 쓴맛에도 불구하고 1.5%와 2.0%의 알로에 첨가가 높은 선호도를 보였다. For the scientific approaches and quality control of aloe wine as fundamental studies of industrialization and quality improvement, change of barbaloin content during the fermentation period and various characteristics of aloe wine were investigated. Alcohol of 6.35, 9.6%, and 11.3% in the 0.5% concentration of aloe powder was produced from 15%, 20%, and 25% addition of sugar in the wine mash, respectively, As the content of aloe powder is increased, production of alcohol was slightly decreased, indicating aloe powder might contain antimicrobial activity. The content of barbaloin in the 0.5% concentration of aloe powder was 4.2 mg/ml, 4.6 mg/ml and 2.21 mg/ml after 7, 10 and 30 day, respectively. The tasty characteristics of aloe wine brewed with aloe powder of 1.5% and 2.0% were most acceptable to the sensory panels.

      • SCOPUSKCI등재

        Biological Activities of the Root of Cichorium intybus

        Ki Chang Geun,Yim Dong Sool,Lee Sook Youn 한국생약학회 1999 Natural Product Sciences Vol.5 No.4

        Several biological activities of extracts from roots of Cichorium intybus Linne (Compositae) were studied in this paper. The antiinflammatory activity of the methanol extract of this root was investigated against carrageenin induced edema in rat`s hind paw. Significant inhibitory effects were observed at the dose of 1,000 ㎎/㎏ and were compared with aspirin as a control. The hepatoprotective activities of the methanol extract, ethylacetate and butanol fraction were studied on mice whose livers are damaged by CCl₄. The serum transaminase activities (ALT, AST) were reduced at the dose of 1,000 ㎎/㎏ of the methanol extract, 500 ㎎/㎏ of ethylacetate and butanol fraction, respectively. The bile juice secretion was also increased significantly from each fraction. The antidiabetic activity was examined on streptozotocin-induced diabetic rats with methanol extract. Methanol extract gave a significant reduction of blood glucose levels in 1 week and 3 weeks.

      • Effect of Subject Posture on Pulse Wave Measurement

        Ki Chang Nam,Eun Geun Kim,Hyun Heo,Young Huh 대한전자공학회 2009 ITC-CSCC :International Technical Conference on Ci Vol.2009 No.7

        In this study, pulse wave parameters change were verified by changing a subject posture. To measure pulse wave in radial artery, noninvasive tonometric pulse wave measurement device (SphygmoCor PX, AtCor, Austrailia) was applied. And 20 parameters of pulse wave for peripheral and central artery were evaluated according to measurement posture; stand, sit and supine. As a result, there were significant differences on P_T1, P_T2, P_T2-T1, ED, PP_AI, PPAmpRatio, HR, SEVR, C_TTI and C_AI (p < 0.05) depend on measurement postures of the subject. Based on this study, for estimating central pulse wave by transfer function from radial pulse measurement, subject posture should be considered in several pulse wave characteristics.

      연관 검색어 추천

      이 검색어로 많이 본 자료

      활용도 높은 자료

      해외이동버튼